ACSM-ASP Fall Convention (1980 Niagara Falls, N.Y.)

• Technical papers of the American congress of Surveying and Mapping Fall TechnicalMeeting, Niagra Falls, NY, October 7-10, 1980
• Technical papers of the American Society of Photogrammetry FallTechnical Meeting, Niagara Falls, NY, October 7-10, 1980